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Before use
# WARNING To prevent injuries or a fire, take the following precautions:
• Stop the car before operating the unit.  To prevent a short circuit, never put or leave any metallic objects (such as coins or metal tools) inside the unit. CAUTION • Adjust the volume so that you can hear sound outside the car. Driving with the volume adjusted to a too high level may cause an accident. [. . . ] After the installing the unit, check whether the brake lamps, blinkers, wipers, etc. Reception may become poor if there are metal objects near the Bluetooth antenna. (KDC-BT73DAB, KDC-BT53U only)
• •
• • • •
Bluetooth antenna unit
KDC-BT73DAB
• This unit has the cooling fan to decrease the internal temperature. Do not mount the unit in a place where the cooling fan of the unit are blocked. Blocking these openings will inhibit the cooling of the internal temperature and result in malfunction. Indd 10
12/12/17 15:0
For Good Reception
Connecting the ISO Connector
To assure good reception, note the following: • Communicate with the cell phone within the line-of-sight distance of 10 m (30 ft). The communication range becomes shorter depending on the surrounding environment. The communication range also becomes shorter when there is an obstacle between this unit and the cell phone.  A broadcast station or walkie-talkie located nearby can interfere with communication due to a too strong signal. The pin arrangement for the ISO connectors depends on the type of vehicle you drive. Make sure to make the proper connections to prevent damage to the unit. The default connection for the wiring harness is described in 1 below. If the ISO connector pins are set as described in 2, make the connection as illustrated. Please be sure to reconnect the cable as shown 2 below to install this unit to the Volkswagen vehicles etc. 1 When the A-7 pin (red) is connected with the ignition, and the A-4 pin (yellow) is connected to the constant power supply of the vehicle’s ISO connector (default):
Ignition cable (Red) A-7 Pin (Red)
Installation accessories 1 . 1
[2]
2 When the A-7 pin (red) is connected to the constant power supply, and the A-4 pin (yellow) is connected with the ignition of the vehicle’s ISO connector:
Ignition cable (Red) A-7 Pin (Red)
Unit
Battery cable (Yellow)
Vehicle
A-4 Pin (Yellow)
4[1] . 1
DC-BT73DAB only K DC-BT53U only K
English | 11
B59-2186-00_00_13Stepup_QSG_E_En. 4 Lower the extraction key toward the bottom, and then pull out the unit halfway while pressing the extraction key towards the inside. Accessory2
• Make sure that the unit is installed securely in place. If the unit is unstable, it may malfunction (for example, the sound may skip). Removing the trim plate
1
Engage the catch pins on the extraction key (Accessory2) and release the two locks on the upper part of frame.  Be careful to avoid injury from the catch pins on the extraction key. [. . . ]  Bluetooth must be built in and the following profiles must be supported. - SPP (Serial Port Profile) - A2DP (Advanced Audio Distribution Profile) NOTE • In the application on your device, log in and create a free account with Aha.  Because Aha™ is a third-party service, the specifications are subject to change without prior notice. Accordingly, compatibility may be impaired or some or all of the services may become unavailable. [. . . ]

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